package cn.edu.qvtu.mapper;

import cn.edu.qvtu.entity.Emp;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.time.LocalDate;
import java.util.List;

/**
 * @FileName EmpMapper
 * @Description 员工管理
 * @Author YooJia Chen
 * @date 2023-07-15
 */
@Mapper
public interface EmpMapper {
    /**
     * 查询总记录数
     * @return
    @Select("select count(*) from emp")
    public Long count();

    *//**
     * 分页查询，获取列表数据
     * @param start
     * @param pageSize
     * @return
     *//*
    @Select("select * from emp limit #{start}, #{pageSize}")
    public List<Emp> page(Integer start, Integer pageSize);*/

    /**
     * 员工信息查询
     * @return
     */
    //@Select("select * from emp")
    public List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);

    /**
     * 批量参数员工
     * @param ids
     */
    public void delete(List<Integer> ids);

    /**
     * 新增员工
     * @param emp
     */
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time) " +
            "VALUES(#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    public void insert(Emp emp);

    /**
     * 根据id查询员工
     * @param id
     * @return
     */
    @Select("select id, username, password, name, gender, image, job, entrydate, dept_id, create_time, update_time from emp where id = #{id}")
    public Emp sel(Integer id);

    public void update(Emp emp);

    /**
     * 根据用户名和密码来查询员工
     * @param emp
     * @return
     */
    @Select("select * from emp where username = #{username} and password = #{password}")
    Emp getByUsernameAndPassword(Emp emp);

    /**
     * 根据部门ID删除该部门下的员工数据
     * @param deptId
     */
    @Delete("delete from emp where dept_id = #{deptId}")
    void deleteByDeptId(Integer deptId);
}
